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Once nLaunch is installed, it runs OS v3.2.3 out of the box. If it's still stuck after multiple tries, you'll have to send the official OS 3.1 instead of nlaunch.tco/tcc and start over.If it's still stuck at the Operating system not found message, try again from step 11.Once the calculator displays Loading Operating System and finishes booting, nLaunch has been successfully installed.Send either nlaunch.tco (TI-Nspire CX non-CAS) or nlaunch.tcc (TI-Nspire CX CAS) to the calculator.If your calculator is a CAS model, send the folder NL_3.1-3.2_switchpack/TI-Nspire CX/CAS/nlaunch/.If your calculator is a non-CAS model, send the folder NL_3.1-3.2_switchpack/TI-Nspire CX/non-CAS/nlaunch/.Send the entire nlaunch folder to the root of the calculator.ndless_resources.tns can be found under NL_3.1-3.2_switchpack/TI-Nspire/ndless/.Create an ndless folder in the root of the calculator, and send the ndless_resources.tns file into it.

#Ti nspire cx cas operating system Pc

Plug the calculator into the PC (with a USB cable), and open TI-Nspire Computer Link.

You will get an Operating system not found message.

Once it's done, press any key to restart.

Type 4 then 1 to delete the OS and all data.

If not, remove a battery and go back to step 2.

Around 60% of the loading bar, you should enter the maintenance menu.

Without releasing those keys, press On.

Press and hold the 3 following keys: Doc + Enter + EE.

Then plug it back in, and put the cover back on.

Unscrew the battery cover on the back of the calculator, and unplug the battery.

Unplug your calculator from the computer.

Make sure that all data on the calculator has been backed up to your computer. Warning: Installing nLaunch will format all data in your calculator.

To save space, remove the ncleaner file in the ndless folder.

Check all unneeded items by clicking down the Touchpad (or clicking the center button on the Clickpad), and validate with Enter.

Overwrite existing files/folders if necessary.

Send the nCleaner.tns file to the ndless folder in your calculator.

#Ti nspire cx cas operating system download

Download and extract nCleaner from TI-Calc.

#Ti nspire cx cas operating system free

Use nCleaner to delete them and free up space. The TI-Nspire has some hidden system files that you probably don't need. To save space, remove the boot2.img and nsnandmgr files in the 'ndless' folder.If it shows Diags Boot2, press 4 and then 6 to switch and 0.If it shows Boot2 Diags, leave it alone.Check the Boot order line on the screen:.Press 0 to return to the main menu once complete.Send the nsNandMgr.tns file to the ndless folder in your calculator.Download and extract nsNandMgr from TI-Calc.These versions already have Boot2 3.1.0.16 installed.īoot2 v3.1.0.16 needs to be installed, since it contains the exploit that Nlaunch uses. Note: Skip this guide if you are currently running OS 3.1.0.392, 3., 3.

Remove the ntnoc file in the ndless folder.

Send the ntnoc.tns file to the ndless folder in your calculator.

Download and extract nTNOC from TI-Planet.

#Ti nspire cx cas operating system update

NTNOC is a tool that deletes the calculator's onboard Boot2 update package (as well as an unused samples.zip archive) to keep it from interfering with the downgrade. (Overwrite existing files/folders as necessary.)

From the TI-Nspire CX folder, send the entire ndless folder to your calculator.

Download and extract the nLauncher archive.

To send files and firmware installers to the TI-Nspire, use the TI-Nspire Computer Link program or some equivalent.

Make sure that you have Ndless 3.1 installed before proceeding.

Note: This guide uses Critor's premade 3.1/3.2 nLaunch OS files, so you don't need to create them. It replaces the OSLauncher of old, which was patched over by TI's update protections in OS 2.0. This also makes it possible to dual-boot OS versions. Nlaunch is a Boot2 exploit that allows users to run any kind of OS on the Nspire without regard for version, model, or source checking. Note: This guide is only for TI-Nspire CX models with Ndless 3.1 installed (OS versions 3.1-3.2.3).